“Having a studio clear out to make space for some new bits coming in.
Sequential circuits Pro 1 in beautiful woking condition.
i dont have to go into detail about this one as you all know what it can do if you have got this far!!
This synth is near mint for it’s age!” Link

“Up for bid is the vintage 80s Sequential Circuits Multi-Trak Model#615 Analog synthesizer in excellent cosmetic condition. New battery just installed by a bay area tech. All the original factory sounds were loaded in. Tested and works perfectly! Just light marks/scratches. Comes with compatible power supply. ” Link

“Tunes up, and all of the keys work great, including the velocity/aftertouch. Everything else works perfectly but it is old, so it is being sold as is, no returns. You can come test it out yourself.

Physically it is a bit worn looking The wood side panel has a large chip on the corner as you can see in the photos. and the silk screening has rubbed off in some places along with some paint on the back.

Also, two of the original knobs were missing, so I replaced them with similar looking knobs. One of the original knobs is also missing it’s silver cap, so it’s just pure black.

This is the most expressive keyboard ever! The aftertouch is poly-aftertouch, so each key has individual modulation instead of channel aftertouch like most other keyboards where it affects all voices the same at once. Sounds soooooo good! For a vintage synth you’ll only find this kind of feature in the CS-80 or Rhodes Chroma to my knowledge. Works as a great controller for other synths. The aftertouch has the perfect sensitivity. ” Link

” It’s been recently serviced and is fully working, in perfect condition apart from some small scuffs on the wood. The External Input has been modded so that when you have something going through the Ext In you can trigger the filter and amp envelopes with the Gate In. I can ship if necessary but would prefer collection. ” Link

“Sequential Circuits Polyphonic Sequencer Model 1005 in very good cosmetic condition but not completely functional. When I owned a Prophet 5 the sequencer did function normally when recording and playing back sequences from it’s internal memory. Braemar tape drive appeared to be defective back then so drive may need repaired or replaced to save, playback and store to and from tape. I no longer own the Prophet 5 so I can’t troubleshoot or test sequencer any further.

A new old stock Braemar tape drive is included with a final test “Pass” printout but it’s present working condition is unknown.

“Up for auction is a vintage Sequential Circuits MAX Synthesizer keyboard. This unit is working and seems to have most all functions in place and operative. I’m guessing the unit has 6-note polyphony, and it sports a rudimentary onboard sequencer – ‘Start’ button is missing, and I didn’t bother to try and test the sequencer function as I doubt it would stack up against, well, anything made after 1982. You get basically 7 banks of 10 sounds, and apparently the only way to ‘deep edit’ the sounds is via computer. (Note that by progressing further into editor mode you will be officially flirting with full-blown geekification.) I can’t even dare to guess what hoops you’d have to jump through to get a modern computer to communicate with MAX, clearly a throwback to the heady infancy of financially accessible analog synthdom. Perhaps there are generic editor programs out there…? That said, there are a handful of onboard presets that are recognizable, and I daresay that in bank 4 (40-49) there is at least one startling TB-303 soundalike. MAX appears to be responding to MIDI in Omni mode, though Poly mode is selectable. External Pitch and Mod wheels are recognized, but suspiciously, Volume is not. ‘Tune’ button is missing, but the unit sounds like it powers up at concert pitch. Back panel power jack is looking for 8 Volts AC / 800ma – I am including a 10V adapter that seems to work fine, but I would suggest being on the lookout for a proper 8V / 800ma adapter. Cosmetically, the unit is in pretty good shape, looking good for its age. I cannot test every single function on this synth, and I have tried to describe it as accurately as possible – I am selling it As-Is and As-Described.” Link

“For sale is a ultra rare, Sequential Studio 440 drum machine/sampler/sequencer. Led screen works! Rare find here. It shows signs of wear, Multiple pictures are there to show unit condition. Data entry fader knob is missing, the data entry fader works, I use a toothpick, a fader knob is .99c on the bay. Also the floppy eject button is missing, also a toothpick works, I’m sure you can be more creative than me. Knobs will be removed for shipping. They slide on and off. Firmware is 2.10 feb 1988. Unit is very clean on the inside as pictured. I will package and ship this unit knowing a rare gem is inside.” Link

“Sequential Circuits Pro One in perfect playing condition and excellent cosmic presentation. This has been recently serviced by Austin’s prestigious Switched On synth shop to include improved noise source, cleaning, cleaned pots, tested keys, replaced mode switches, among other items. Everything works as it should. J-wire style keyboard works perfectly. Guaranteed not DOA.” Link

Kept in a smoke and pet free studio since I got it second-hand (around 5 years ago)

It is modified with the extra bonus of 4 x 1/4 inch inputs for external drum trigger pads for live performance. Trigger pads can be bought from Roland et al.

There is one plastic button/top missing – for the ‘Slower’ tempo button. I have not had a chance to replace it. But I am sure you can buy a replacement online and put it back on yourself. You can still trigger the button without it though.

Everything else technically is in perfect condition and cosmetically looks great for its age.” Link

“This is a Sequential Circuits Six-Trak. Powers up, all lights come on but don’t go out. No sound, no response to buttons or keys. Power switch is broken and looks like it has been connected straight through, so it powers up as soon as it is plugged in. All parts appear to be present. Sold as is for parts or repair only. 117 VAC, model 610.” Link

“Sequential Circuits Prophet 5 Version 3.3 synthesizer in good condition. I am the original owner of this magnificent keyboard. Only used in the studio on countless recordings. Unfortunately this keyboard has been in storage and is due for some maintenance. The keyboard works, all potentionmeters work, all LED works, Pitch and Mod wheels work. Some of the J wires need to be replaced so some keys do not trigger a sound. Also the rubber key stops need to be replaced on the entire keyboard. Not necessary if your’e using MIDI but if your playing it you will get tired of all the key clacking. All of these parts are available at WineCountrySequential or you could have them refurbish the keyboard. The wood casing is in good condition except for a dent on the front rail by the name plate, see photo #5. The Star case is in good condition but needs to be refoamed.

Please keep in mind that this is a vintage keyboard and will require some minor repair before you start using it on a gig. This will be a fine addition to any keyboardist collection.

“This one is in excellent cosmetic condition and working 100%. Beside the servicing & internal restoration, the bottom metal chassis was professionally repainted and silk-screened as it was pretty ugly and scratched up. Internally, I decided to keep this one stock without adding midi. It is ready to be played and needs nothing!” Link

“Sequential Circuits Sx trak , superb condition and all working , new battery

Buttons all work but the number 2 can be a bit sensitive ( probably needs a clean ) but everything is working ,a new memory battery was fitted
by its previous owner and it has all the original presets .” Link

” The Sequential Circuits Six-Trak Polyphonic Synthesizer may be labelled as a “beginner model” by the company, but the features and functionality make it a prime choice for any synth enthusiast. Built with 48 velocity-sensitive keys and the same Curtis circuitry found in the company’s more expensive models, the Six-Trak boasts six voice polyphony and six VCOs for solid lead, bass, and pad modeling. Throw in an expansive onboard sequencer and single knob for one parameter control to achieve a world of sound right out of the gate.

I’ve owned this synthesizer for 2 years and have had nothing but joy from it. The only reason I’m selling is so I can afford to buy… another synthesizer, of course. Comes with 99 great patches. You can edit those to make most sounds you might want. The sequencer is very simple but intuitive and includes some fun features such as multitimbrality (multiple patches at once) and volume for each voice. It’s also one of the few synths from this period that has full midi functionality, so you can plug it right to the computer or a sequencer. Overall this thing is in great condition. The wood panels are slightly scuffed on the corners but no actual damage. All buttons and keys work. You don’t wanna miss out on this 1984 polysynth! Does NOT include stand. ” Link

“It was released models in the mid-1980s.
While production of this age is also equipped with a MIDI. Patch memory 64 sound, 8 voice specification.
Polyphonic synth with a look reminiscent of the Prophet.
Although the sound makes feel a little cheap of, there is a unique charm.
Because the model not seen quite as well in the used market, who became worried as soon as possible! !

Serial: 02367
Scratch, without the use on the problem
BIN: Not
Manual: None
Accessories: Hard Case
UD20160716” Link

” 1984 Sequential Circuits Six-Trak in great condition, serial #245. I bought it from a sixth form college last year as the department that owned it was shutting down. I’ve since replaced the memory battery and reloaded the factory presets. The synth is now fully functional with all 6 voices, filter, LFO, amp, sequencer, stack, arpeggiator, wheels* etc working perfectly, and makes some really great sounds in poly, unison and stack modes. It works with a foot controller though I’m not including one.

The ‘1’ key needs some pressure before it registers, the top left corner is slightly chipped (pictured) and there are light patches on the sides where stickers used to be (also pictured).” Link

The high A key was repaired professionally and is fully functional, just shows some slight discoloration. See pics for wear/scratches on wood and rest of body.

Membrane keypad and LED display are new (exact replacement part), and were professionally installed.

I played this keyboard for years in a gigging/recording band and loved the amazing analog sounds you could coax out of this thing. It has a unique and undeniable character. Has real heart as an instrument and I hate to see it go.

Hard Case is made of thick plywood covered in felt with metal corners and hardware. Inside is foam. Very heavy-duty build and is valued at ~$125 on its own–included with your purchase at no extra charge.” Link

“I recently acquired this from the original owner. I was able to load disks and the samples seem to work fine. All keys seem to be working as well. I was able to use the Arpegiator and Filters. Since I’m not an expert in the keyboard I’m not sure if it’s exactly 100% functional. Sold As-Is. Some of the included disks didn’t load but a lot of them did.” Link

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